Chromium(VI) oxide
SIGALD/236470 - ACS reagent, ≥98.0%
Synonym: Chromic anhydride
CAS Number: 1333-82-0
Empirical Formula (Hill Notation): CrO3
Molecular Weight: 99.99
EC Number: 215-607-8
MDL Number: MFCD00010952
Linear Formula: CrO3
Product Type: Chemical
anion traces | chloride (Cl-): ≤0.005% |
nitrate (NO3-): ≤0.05% | |
sulfate (SO42-): ≤0.005% | |
assay | ≥98.0% |
cation traces | Fe, Al, Ba: ≤0.03% |
Na: ≤0.2% | |
form | powder or crystals |
grade | ACS reagent |
impurities | ≤0.01% insolubles |
InChI | 1S/Cr.3O |
InChI key | WGLPBDUCMAPZCE-UHFFFAOYSA |
mp | 196 °C (dec.) (lit.) |
pH | <1 (20 °C, 100 g/L) |
Quality Level | 200 ![]() |
reaction suitability | reagent type: oxidant |
SMILES string | O=[Cr](=O)=O |
General description: | Chromium(VI) oxide is an oxidizing reagent for the oxidation of carbon-hydrogen bonds to alcohols, alkylaromatics to ketones and carboxylic acids, alkenes to α, β-unsaturated ketones, arenes to quinones, and alcohols to aldehydes, ketones, acids, and keto acids. |
Packaging: | 100, 500 g in glass bottle |
Symbol | ![]() ![]() ![]() ![]() ![]() |
Signal word | Danger |
Hazard statements | H271 - H301 + H311 - H314 - H317 - H330 - H334 - H335 - H340 - H350 - H361f - H372 - H410 |
Precautionary statements | P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
Hazard Codes | O,T+,N |
Risk Statements | 45-46-9-24/25-26-35-42/43-48/23-50/53-62 |
Safety Statements | 53-45-60-61 |
RIDADR | UN 1463 8(6.1)(5.1) / PGII |
WGK Germany | WGK 3 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥98.0% |
mp | 196 °C (dec.) (lit.) |
UNSPSC | 12352300 |